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In a piston - water vapour system, there is initially wet water vapour at a pressure of P = 1 0 0 kPa and a

In a piston-water vapour system, there is initially wet water vapour at a pressure of P=100 kPa and a dryness of x1=0.1(state-1). When q=500 kJ/kg heat is applied to the system, the piston rises without friction and starts to contact the spring (state-2). The heating process is continued until the wet vapour becomes saturated vapour (state-3) and the pressure increases according to the relation P(v)=a+bv and reaches P3-300 kPa. Draw the P-v graph of the state changes and calculate the given heat and boundary work during the state changes

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